diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index bd14720..823dfa7 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -864,6 +864,9 @@
 /**
  *	ata_port_queue_task - Queue port_task
  *	@ap: The ata_port to queue port_task for
+ *	@fn: workqueue function to be scheduled
+ *	@data: data value to pass to workqueue function
+ *	@delay: delay time for workqueue function
  *
  *	Schedule @fn(@data) for execution after @delay jiffies using
  *	port_task.  There is one port_task per port and it's the
@@ -2739,6 +2742,8 @@
  *	ata_dev_init_params - Issue INIT DEV PARAMS command
  *	@ap: Port associated with device @dev
  *	@dev: Device to which command will be sent
+ *	@heads: Number of heads (taskfile parameter)
+ *	@sectors: Number of sectors (taskfile parameter)
  *
  *	LOCKING:
  *	Kernel thread context (may sleep)
@@ -4302,6 +4307,7 @@
  *	ata_device_suspend - prepare a device for suspend
  *	@ap: port the device is connected to
  *	@dev: the device to suspend
+ *	@state: target power management state
  *
  *	Flush the cache on the drive, if appropriate, then issue a
  *	standbynow command.